Expired65% confidenceBenchmarkExact time
OpenAI states that GPT-5.6 achieves the current state-of-the-art on Terminal Bench 2.1.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
7/10/2026
First Seen
Valid until: 10/8/2026(expired)
Sources
GPT-5.6 Three-Model Benchmark: How Close Are Sol/Terra/Luna to Claude?
bilibili烟神殿副殿主7/9/2026
Related Claims
UnverifiedOn June 26, OpenAI released the GPT-5.6 series, adopting for the first time a four-tier stratification strategy of flagship, balanced, fast, and cheap, with the flagship version topping the Terminal Bench 2.1 benchmark with a score of 91.9%.80% similarUnverifiedOpenAI avoided disclosing SWE Bench Pro scores in the GPT-5.6 release materials.78% similar
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